We have a ticket in Helpscout, where the user is claiming that they had an audit from the HDFC Bank staff and they have pointed out to some high-risk vulnerability (i.e. Amount Tampering) within our add-on.
Dear Maruti,
I spoke with the tech team at the HDFC Bank payment gateway integration . They told me that the reverse hash sent from the payment gateway has to be checked before logging transaction as successful .
The information is available in detail in the integration document - page 19, 20 and 21. I am attaching the same here for your quick reference (available on GitHub as well)
User Story
We have a ticket in Helpscout, where the user is claiming that they had an audit from the HDFC Bank staff and they have pointed out to some high-risk vulnerability (i.e. Amount Tampering) within our add-on.
Related link
HS link: https://secure.helpscout.net/conversation/656840067/24825?folderId=1457790
Attachment
Integration Document Version 2.6.pdf